Tool-Free Fastening
The integrated wing design allows quick tightening and loosening by hand, eliminating the need for wrenches or other tools.

DIN 315 is a German standard for wing nuts with rounded wings, designed for fast and tool-free tightening or loosening by hand. With its ergonomic butterfly-shaped design, DIN 315 wing nuts provide excellent grip, convenient installation, and reliable clamping performance for applications requiring frequent adjustment or maintenance


DIN 314 and DIN 315 are both German standard wing nuts designed for tool-free manual fastening. The main difference is the wing shape, which affects grip, handling comfort, and application suitability.
DIN 314 = Stronger Grip + Higher Manual Tightening Force
DIN 315 = Better Ergonomics + More Comfortable Operation
The integrated wing design allows quick tightening and loosening by hand, eliminating the need for wrenches or other tools.
The angular wing profile provides better torque transmission compared with round wing designs, ensuring reliable clamping performance.
DIN 315 is a German standard specifying wing nuts with rounded wings, designed for hand tightening without tools.
Yes. They are designed for repeated tightening and loosening, making them suitable for maintenance applications.
They are suitable for manual clamping applications but are not intended to replace high-strength hex nuts in structural fastening.
Yes. Customized materials, finishes, packaging, and OEM specifications can be provided according to customer requirements.